Loom-shuttle



(No Model.)

A. T. ATHBRTON.

LOOM SHUTTLE.

Patented Mar, 31

UNITED STATES PATENT FFICE.

ABEL T. ATHERTON, OF LOVELL, MASSACHUSETTS.

LOOM-SHUTTLE.

.SPECIFICATION farming part o Letters Patent No. 314,907, dated Ildezrch31, 1835.

Application filed Juno 7,1834.

y vthe Wall of chamber C, and K is the narrow To all whom tmay concern:

Be it known that l, ABELT. ATHERTON, of Lowell, in the State ofMassachusetts, have invented a certain new and useful Improvement inLoom-Shuttles, of which the following is a specication.

Myinvention relates tolooin-shuttles of the kind known ashandthreading77 shuttles, or,as they are so metiines butimproperlycalled, self-threading77 shuttles. ln a shuttle of this kind the yarnfrom the spindle passes to the throat, in which there is usually a studor shoulder in line with the axis ofthe spindle, around which shoulderthe yarn makesa quarter-turn, and thence passes to and through thedelivery-eye in the side of the shuttle. When the shuttle is in activeoperation, the thread or yarn is liable to leave the shoulder or studand to come to the outside of the shuttle, thus producing what is calledunthreading the result of which is to make a bad place in the cloth, andto necessitate the stopping of the loom for the purpose of replacing theyarn in its proper position.

It is my object to prevent unthreading, without, however, interferingwith the easy threading of the shuttle. To this end I close the passagein the top of the shuttle through which the thread or yarn from thespindle is passed over and around the shoulder or stud by a spring whichis so arranged that it will yield to permit the entrance of the threadinto the passage guarded by it, and will, after the thread has entered,automatically closeand prevent the accidental displacement of the threadfrom around the shoulder.

The nature of my invention will be readily understood by reference tothe accompanying drawings, in which l have represented it as applied toahand-threading loom-shuttle of the kind described in Letters Patent No.185,041, of December 5, 1876, granted to Whitehead 8U Atherton,assignees of A. M. Moore.

Figure l is a side elevation of the front portion of the shuttle. Fig. 2is a plan of the same. Fig. 3 is a crosssection on lineS 3, Fig. l. Fig.4 is a longitudinal section on line 4:4, Fig. 2.

A is the body of the shuttle, B is the spindie," C is the chamber, and Dis the throat. G is the delivery-eye, H is the threadingeyein (Nomodel.)

threadingslot, which extends longitudinally from the delivery-eye G tothe threading-eye H, and also extends laterally through from the Loutside of the shuttle into the throat D. Eis the stud or shoulder,fastened in Vplace in the lthroat by its base-piece E, so as to be outof contact with the side and front walls thereof, thus leaving on thesides and at the front of t-he stud or shoulder passages a b c, whichare used during the threading operation in themannerhereinafterexplained. In thethreaded shuttle the thread or yarnextends from the end of the spindle to the stud or shoulder E, aroundthe front of which in the passage a it makes a quarter-turn, and thencepasses to and out through the delivery-eye G.

Thus far the shuttle is substantially like the patented shuttlehereinbefore referred to.

As I have before stated, the thread or yarn, when the shuttle is inactive operation, is apt to rise and escape from the stud or shoulderthrough the passage a, which ordinarily is open atthe top. This event isof not infrequent occurrence, even in the patented shuttle repre sentedin Letters Patent hereinbefore cited, although in said patented shuttleit was essayed to prevent such au accident by bending the upper end ofthe stud forward and downward until it almost touched the Wood at theshallow end of the throat.

Ihave found in practice that to prevent with certainty the yarn fromdying offfrom the stud, and thus coming to the outsideof the shuttle, itis requisite to completely close the outlet through which the yarn mayescape at the point where it turns the corner to go to the delivery-eye.To this end l make use of a light plate-spring, d, which is arranged tocom pletely close at the top the opening or passage Vbetween theshoulder or stud and the front wall upon the shuttle-wood in a slightrecess or depression, e, formed in the top of the shuttle. Under thisarrangement unthreading is entirely prevented. At the same time the op-ICO eration of threading the shuttle by hand can be performed with asmuch ease and expedition as though the spring were not present.

The threading operation is as follows: The cop-yarn from the spindle ispressed by the foreiinger of the right hand through the threadingeye,and the projecting end is taken in the left hand. The thread, .held ontheinside in the right hand and on the outside in the left hand, isdrawn along through the threading-slot K, as indicated by dotted line xaaFig. 2, being bent up as it reaches the stud E, so as to pass alongthrough the passage b between thelatter and the adjoining side wall ofthe throat, as indicated by dotted lines m x, Fig. 3. From thethreading-slot the thread emerges into the delivery-eye, As soon as thisoccurs, the innerbent-up end ofthe thread (held in the right hand) isdrawn down into the depression e and under the free end ofspring d,which yields and rises to permit the passage ofthe thread. The thread isnow in the passage a, and extends direetly from the end of the spindlearound the corner formed by the stud or shoulderE to and through thedelivery-eye G. The operation can be performed quickly and with as muchease as though there were no spring present.

In conclusion I state that I am aware it is not new in a hand-threadingshuttle to close the threading slotthat is to say, the slot formed inthe wood or body of the shuttle and communicating with the delivery-eyefor the purpose of facilitating the entrance of the This is not myinvention, nor does it serve to bring about the result which itis theobject of my improvement to attain.

What I claim as new and of my own invention is- 1. The combination, withthe shuttle-body formed with a delivery-eye, and the shoulder or studaround the corner formed by which the thread or yarn from the spindlepasses to the delivery-eye, ofaspring-controlled strip bridging thespace through which the thread passes between said stud or shoulder andshuttlebody,adapted to yield to the thread as the latter is drawnunderit into said space and to automatically close after the. passage of thethread, substantially as and for the purposes hereinbefore set forth.V y

2. The combination, with the shuttle-body formed with delivery-eye G,threading-slot K, threadingeye H, and throat D, of the stud or shoulderE and spring-strip d, under the arrangement and for joint operationsubstantially as hereinbefore shown and described.

y In testimony whe'reofI have hereunto set my hand this 2d day of June,1884.

ABEL T. ATHERTON.

Vitnesses:

FRANK COBURN, GEORGE XV. COBURN.

